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Speech recognition method and device, computer equipment, and storage medium

A technology of speech enhancement and target speech, which is applied in the field of signal processing, can solve the problems of unfavorable speech recognition and low accuracy of speech signals, and achieve the effect of speech enhancement

Active Publication Date: 2018-11-16
PING AN TECH (SHENZHEN) CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

At present, the accuracy of the speech signal extracted after speech enhancement processing is not high, which is not conducive to subsequent speech recognition

Method used

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  • Speech recognition method and device, computer equipment, and storage medium
  • Speech recognition method and device, computer equipment, and storage medium
  • Speech recognition method and device, computer equipment, and storage medium

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] The speech enhancement method provided by the embodiment of the present invention can be applied in such as figure 1 An application environment in which a computer device communicates with a server over a network. Computer equipment can be, but is not limited to, various personal computers, laptops, smartphones, tablets, and portable wearable devices. The server can be implemented as an independent server.

[0030] The voice enhancement method...

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Abstract

The invention discloses a speech recognition method and device, computer equipment, and a storage medium. The method comprises the steps: carrying out the conversion of the original voice information,and obtaining a digital speech signal; obtaining a Hankel matrix based on the digital speech signal; carrying out the SVD (singular value decomposition) of the Hankel matrix to obtain at least two singular values; carrying out the inverse calculation of the SVD of at least two singular values to obtain a target speech signal; and carrying out the reduction processing of the target speech signal,and obtaining the target speech information. The method can effectively inhibit the noise interference, so as to improve the recognition accuracy of the target speech information in the speech recognition process.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to a voice enhancement method, device, computer equipment and storage medium. Background technique [0002] With the widespread use of speech recognition technology, the demand for speech signal processing technology will also expand. At present, the voice signal collected by the computer equipment includes not only voice information corresponding to the speaker's voice, which is valid information, but also noise information formed by other sounds except the speaker's voice. In the speech recognition process, if the speech signal collected by the computer equipment is directly recognized, the accuracy of speech recognition will be affected due to the existence of noise information. Therefore, it is necessary to perform enhanced processing on the speech signal collected by the computer equipment (that is, perform noise reduction processing on the speech signal), so as to extract a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/02G10L21/0264
CPCG10L21/0202G10L21/0264
Inventor 涂宏
Owner PING AN TECH (SHENZHEN) CO LTD
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